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OMMUNICATION
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ANUAL
FC9Y-B1730 8-23
8: J1939 C
OMMUNICATION
Receive results status
S2 (Receive REQ Trigger)
This function issues a PGN transmit request as a broadcast to the J1939 communication network. If the receive REQ trigger is
turned on, PGN 599034 (Request) is transmitted as a broadcast in ladder program END processing.
Receive REQ trigger usage example
D1 (Receive Notification Flag)
Sets the flag for notification of a received message. This register is on for one scan when a message is received.
(2) Append button/Delete button
Click Append to add a received message row to the message list (3).
To delete a message, select the message to delete in the message list, and then click Delete.
(3) Message list
Displays the content configured by the message parameter settings (4). The received message can also be enabled or
disabled. The message is enabled when the check box is selected and disabled when the check box is cleared.
Notes:
Click the check box column header to perform the following operations.
• If all received message check boxes are on, all of the check boxes are cleared.
• If any received message check boxes are off, all of the check boxes are selected.
(4) Message parameter settings
These settings configure the details of the received message selected in the message list.
CAN ID
Status Code Description Details
0Normal
10 Receive cycle timeout
The set time for the receive cycle timeout has been exceeded since the previous
message was received.
100 Received data length error
The length of the received message data was longer than the maximum data
length.
101 Received data length error The received message was 252 bytes or longer.
102 Multi-packet receive error A message with a data length of 9 bytes or longer could not be received.
PGN: Sets the PGN of the message to receive in 2 bytes. The range of the PGN that can be set is 0 to 61,184 (0000h to
EF00h) (PDU1 format) and 61,440 to 65,535 (F000h to FFFFh) (PDU2 format). Set the low order 1 byte (PDU
Specific) that indicates the destination address in PDU1 format to 00h.
When the PGN is set in the PDU1 format range, only messages with a destination address of 255 (global address)
can be received.
Click ... and a PGN can be selected in the displayed PGN Manager. For details, see "PGN Manager" on page 8-29.
M8301
J1939 online status
ON
OFF
Receive REQ trigger
ON
OFF
Receive notification flag
Data storage destination DR
ON
OFF
Ladder program
END processing
ON
OFF
Transmit buffer
Receive buffer
CAN
REQ
REQ Message A
Message A
Message A
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